Spray nozzle



April 10, 1928. 1,665,482

R. M. STRONG SPRAY NOZZLE Filed Jan. 12. 1926 IN V EN TOR.

BY WMMWQJ ATTORNEYS.

Patented Apr. 10, 1928.

I UNITED sra'rss ROBERT M. STRONG, OF LOS ANGELES, CALIFORNIA.

SPRAY NOZZLE.

Application filed January This invention relates to a. nozzle structure for producing Walls of water intersecting at an angle. More particularly, this invention pertains to a nozzle structure adapted to be disposed at a cornerof an edifice having a polygonal horizontal sect-ion so that inter secting walls of water are projected to shield this portion of the structure. The present invention is especially useful for fire protective purposes, and a specific use is that of protecting derricks employed in oil well drilling. In such instances, it is desirable to shield the derricks by the walls of water completely enveloping the structure, and to wet the structure.

he primary object of this invention is to provide a nozzle which may be mounted on a corner of such a structure and which will efiectively produce vertically descending water sprays in the form of vertical walls. In addition to the broader objects of this invention, there are certain details of structure whereby a simple, compact, economical and eflicient nozzle is obtained.

These objects together with other objects and corresponding accomplishments are obtained by means of the embodiments of my invention illustrated in the accompanying drawing, in which:

Fig. 1 is a vertical elevation in section of a nozzle arranged to produce intersecting walls of water spray; Fig. 2 is a bottom view of the structure shows in Fig. 1 looking in the direction of the arrow 2; Fig 3 is a section as seen on the line 3-3 of Fig. 1; and Fig. 4 is a View similar to Fig. 1 showing another form of the nozzle for producing a single wall of water spray.

Referring more particularly to the drawing, and especially to Figs. 1, 2, and 3, a bifurcated tubular body is shown. This body may be formed of a single casting of Y-form having a common inlet 5 adapted to be connected to a source of water or liquid under pressure. The inlet communicates with divergent branches 6 and 7 which as shown herein are substantially at right angles to one another. Inlet 5 is internally threaded as indicated by 8 to provide for easy attachment to the supply piping, and

a bore 9 extends therethrough to a tip 10 which extends across the axis of the branch. The tip is provided with a jet passage and orifice 11 communicating with the bore 9 and of l s diameter. The outer end of the 12, 1926. Serial nasacee.

passage 11 is of enlarged diameter, thread ed, and closed by a plug 12. This plug provides for access to the endof the bore 9 and the passage 11. Thebore 9 at its juncture with its passage 11 is threaded and mounted therein is a communication plug 18. The communication plug has a head 14 provided with a kerf 15 so that a screw driver or like instrument may be used thereon for adjusting the plug by turning it. Extending through the plug is a port 16, which is ec centric to the axis of the plug. The plug 13 acts to restrict the' bore 9 and a jet issues from theport 16 tangential to the'passage 11 so that a whirl is produced in the stream passing through the jet orifice 11. The jet issuing from the tip 10 spreads due to this whirling. action. The amount of spread may be adjustedby adjustment of the plug 13. The character of the face of the plug 12 forming theend wall of orifice passage 11 will also affect the whirling action, offering more or less resistance depend ing upon the character of the face surface. The stream of water issuing from tip 10 is directed toward the end of branch 6.

Branch 6 has a bore 17 extending therethrough and conveniently closed by a plug 18. Extending into the bore is an orifice port '19'whcreby water is discharged through the port 19. The stream or jet from orifice 19 will meet that from the orifice 11, as will be noted from an inspection of Fig. 1. The structure shown in Figs. 1, 2, and 3, is such that the smaller of the orifices passes a stream of less cross-sectional area and greater velocity than the other. The smaller jet splits the larger jet, deflecting the water downwardly and laterally to produce two Walls of water having a corner. The angle bet-ween the walls and the distribution of the water spray can be adjusted by means of the jet plug 13. The structure may be varied in accordance with expedients well known in this art for producing jets or sprays of water. In Fig. t, a nozzle is shown having an inlet 20 and branches 21 and 22. The construction is the same as that shown in Figs. 1 to 3, except that the tip 24- is arranged to impinge the jet issuing from orifice 23 at a slightly different angle. The jet orifices 23 and 25 are more nearly of the same cross sectional area. This particular nozzle is intended to produce a single wall of water spray instead of intersecting walls. There are various changes which may be made in the design to vary the thickness of the water walls,the angles of intersection and the position 01' the walls with respect to the horizontal. V

In each of the nozzles shown a wedge is shown directly in the path of the stream issuing from the'jet tip. These wedges act to split the streams, in case the cooperating jets are inoperative. The wedges are indicated by 25 and 26.

WVhat I claim is: a

1. A nozzle structure comprising water courses having orifices directing streams of water at an angle to each other and intersecting at a substantial distance beyond the outlets of said orilices,-the orifice of one of said streams producing a jet of lesscrosssectional area and greater velocity than the other whereby intersecting walls of water are formed.

2. A nozzle structure comprising water courses having orifices directing streams of water at an angle to each other and intersecting at a substantial distance beyond the outlets of said orifices, the orifice of one of said streams producing a jet of less cross-sectional area and greater velocity than the other and impinging upon the other so that the axes of said streams intersect.

3. A nozzle structure comprising a body having divergent branches provided wlth water courses having orifices arranged to project streams of water inwardly toward and impinging upon each other beyond the outlets of said orifices, the orifice of one of said streams producing a jet of less crosssectional area and greater velocity than the other whereby intersecting walls of water are formed.

4. A nozzle structure comprising a body having divergent branches provided with water courses having orifices arranged to project streams of water inwardly toward and impinging upon each other beyond the outlets of said orifices, the orifice of one of said streams producing a jet of less crosssectional area and greater velocity than the whirling jet.

6. Anozzle structure comprising a body having divergent branches provided "with water passages, ajet tip at the end ofone of other.

other, and means in the other of said water courses for producing a whirling jet,

5. A nozzle structure comprising a bod having divergent branches provided with water courses having outlets arranged to project streams of water inwardly toward and impinging upon each other, the orifice of one of said streams producing a jet of less cross-sectional areaand greater velocity than the other, and adjustable means in the other of said water courses for producing a said branches having a passage extending transverseto and communicating witlrthe water passage in that branch, the other of said,branches having a jetport eirtcnding laterally so as to produce a stream of water lntersectlng the stream issuing ijrom said et tip beyond the outlets of said tip and port, the orifice of one of said streams producing a et of less cross-sectional area and greater velocity than the other stream. i V

7. A nozzle structure comprising a body having divergent branches provided with water passages, a jet tip at the end of one of said branches having a passage extending transverse to the water passage in that branch, a rotatably adjustablecommunica tion plug at the juncture of said'passages having a communication port of reduced diameter and eccentric to the axis; of said plug so that water passing therethrough will enter the passagein said t1p substantially tangentially, the other of said branches having a jet port extending fla-terallyso as to produce a stream of water intersecting the stream issuing from said jet tip and the orifice thereof producing a jet of less crosssectional area and greatervelocity than the onner M. srnone.

that I claim the foregoing I 

